package com.user;

import com.xiaoqiang.dog;
//lang包默认导入
public class Test {
    public static void main(String[] args){
        dog dog = new dog();
        System.out.println(dog);

        com.xiaoming.dog dog1 = new com .xiaoming.dog();
        System.out.println(dog1);

        System.out.println( Math.abs(-1) );

    }
}
